cirocirociro03, as far as I can see what you read is probably related to the fact that people expect an extreme resolution with HD and Ultra addons. There are definitely substantial improvements, only not comparable with object randomly calculated in real time outside of the Solar System, this is expected by design. There will be improvements, they're planned already.

mosfet hello, I downloaded the Solar System HD folder and put it inside the addons..but in game folder no known change..I put you image installation..e put the images of the first image and the venere..in default..while of the second and the hd..known file any change?